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Finding the Fourth Proportional to 180,368.46, 248,915.81 and 99,794.68

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Solution

The fourth proportional to 180,368.46, 248,915.81 and 99,794.68 is: 137,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,368.46 : 248,915.81 = 99,794.68 : x
  2. Step 2: Convert to fraction form
    180,368.46/248,915.81 = 99,794.68/x
  3. Step 3: Cross multiply
    180,368.46x = 248,915.81 × 99,794.68
  4. Step 4: Simplify right side
    180,368.46x = 24,840,473,605.89
  5. Step 5: Solve for x
    x = 24,840,473,605.89/180,368.46
  6. Step 6: Final answer
    x = 137,720.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.